⟩ When did first muslim invation took place in kakatiyas rule?
1303 ad
1303 ad
Aqua regia used by alchemists to separate silver and gold is a mixture of—(A) hydrochloric acid (concentrated) and nitric acid (concentrated)(B) hydrochloric acid (concentrated and sulphuric acid (concentrated)(C) nitric acid (concentrated) and sulphuric acid (concentrated)(D) hydrochloric acid (dilute) and sulphuric acid (dilute)
Which one of the following is the tide produced as a consequence of moon and sun pulling the earth in the same direction?(A) Spring tide(B) Neap tide(C) High tide(D) Low tide
Which one of the following is an object with such a strong gravitational field that even light cannot escape from its surface?(A) Neutron star(B) White dwarf(C) Black hole(D) Supernova star
In which one of the following is higher percentage of carbon found?(A) Lignite coal(B) Peat coal(C) Bituminous coal(D) Anthracite coal
Commercial vulcanization of rubber involves—(A) sulphur(B) carbon(C) phosphorus(D) selenium
The rusting of iron nail—(A) decreases its weight(B) increases its weight(C) does not affect weight but iron is oxidized(D) does not affect weight but iron is reduced
Which one of the following when dissolved in H2O gives hissing sound?(A) Limestone(B) Slacked lime(C) Soda lime(D) Quicklime
Consider the following statements about Comprehensive Test Ban Treaty (CTBT)—1. The treaty comes into force only if and when all nuclear capable countries sign it.2. Iraq and India have not signed the treaty.Which of the statements given above is/are correct?(A) 1 only(B) 2 only(C) Both 1 and 2(D) Neither 1 nor 2
Which one of the following is heavy water used in nuclear reactor?(A) Water having molecular weight 18 amu(B) Water having molecular weight 20 amu(C) Water at 4°C but having molecular weight 19 amu(D) Water below the ice in a frozen sea
Which one of the following pairs is not correctly matched?Country — Currency(A) Brazil — Reais(B) China — Yuan(C) Mexico — Pesos(D) Thailand — Ringgit